Track terminal



s. ENGLISH.

TRACK TERMINAL. 'APPLlcATloN FILED vec zl, 1921. 1,407,396, Patented Feb. 21, 1922.

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TRACK TERMINAL. j

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moved forward as the car is pulled off of the terminal. j. I j y i My terminal is provided with two shoes resting yon the rail,l and the shoes are co1i`` nected soV that they move togetherlongitudij nally of the rail, but the connection is such that the pressure produced on one shoe "oy the weight ofthe car on thatgshoe is not transmitted tothe other slice sunicientlyV to materially increase the friction between that shoe and the rail. 4By reason` of this arrangemenathe shoe upon which thesweight ofthe car rests during thestopping period may have a high friction on the rail, whereas the shoe upon which the weight of the car rests when Athe car is being pulled off the terminal may have a relatively .low fric tion on the rail. e 'Y By the foregoing arrangement, a high friction is secured when it is needed to stop the'car and a relatively low friction is present as the car is being pulled off of the terminal. f v

` My inventionl will be better understood by referring to the accompanying drawings eX- emplifying a device embodying my inven; tion, and in which: 1

Figure 1 is a perspective view of a track with .the Ydevice applied thereto; j

Figure 2 is a section on the lineII-II of Figure 1;

`Figure 3 is a section of one of the'shoes taken on the center line of the rail; .j

f Figure 1 is a section on .the line IV-IV ofFigurel; Q n n.

' F'gure 5 is a section on'the lineV VL-V. of Figure'l, the Vterminalbeing shown in dotted lines; j

Figure 6 is a side elevation of the shoe for returning the terminal; and. d

" Figure 7 shows, in section, a modification of my invention.

. Specification of Letters Patent. Application inea December 21, 1921.

Patented Feb. 21, 1922. serial No. 523,867'.

` Referring to the drawings, Figure 1 shows a section of a railroad .track of ordinary construction and 'having rails 1 and 2 placed upon ties 3. The rails 1 and 2 are provided with stop plates a and 5, respectively. A terminal is shown on each of the rails 1 and 2, but 1 desire .it to be understood that in many instances one terminal will be suicient. The terminals shown are exact duplicates and a description of one will therefore answer for both.

The terminal, as a whole, comprises two shoes 6 and 7. The shoe 6 will be first engaged by the car,rand later the wheel of the car will engage the shoe 7, after having passed over Vthe slice 6. The shoe 6 is provided with an inclined surface 8, gradually rising from the top of therail tov thev point 9. The shoe 6 is provided with a more abrupt incline 10, leading from the point 9'to the top ofthe rail. The rate of curvature of the incline 10 increases at 11 for Va reason which will be apparent later. Theshoe .gradually increases in thickness from its engagement with the rail to a pointl 12, whereupon it rises abruptly to the top of the projection 13. The curvature of the part between the points 12 and 13 is made to substantially conform tothe circumference of the standard car wheel. The shoe 7 is cut away at 14 for the purpose of decreasing the weight of the shoe. The shoe is provided with a brace 15 for the purpose of strengthening that portion extending between the points 12 and'13. The shoe 6 is provided with a housing projecting downwardly on each side of the rail, the downwardly projecting portionsbeing numbered 16 and 17, as shown in Figure 2. The shoe 7' is provided with a similar housing having portions 18 and 19, extending downwardly therefrom, as shown in Figure 4. The shoes 6 and 7 are connected together by horizontal members 20 and 21. The members 20 and 21 are connected to the shoe 6 by bolts 22 and k23,7respectively. The holes 24 in the downwardly extending portions 16 and 17 of the shoes 6 yare elongated, as shown in detail in Figure 6. This is to permit a relative verticalvmovement between the shoe 6 and the members 20 and 21.

The shoe 7 is provided with a wear plate 25, which engages the rail on one side and the shoe 7 on the other side. The wear plate e5 is provided with a rib 26, which tts into al corresponding opening in the shoe 7, as shown in Figure 3. The wear-plate is also upturned at 27, so that the upturned portion engageswith the end of the shoe 7. By the arrangement shown, the wear plate is moved with the shoe and takes the wear incident to the operation of the de# vice, and at the same time, when the wear plate has been considerably worn down, it may be readily removed from the shoe and and a new wear plate substituted therefor.

Stop plates 28 and 29 are fastened to the rails '1 and 2, and the movement of the terminal ig, limited to the distance between the stop plates f1 and 5 and 28 and 29. The tracks are cut away at 8O and 31 to indicate that the stop plates may be placed at any desired distance apart. Usually one rail length will be a sufficient distance, but this distance may bevaried at will.

The joint between abuttingV rails intermediate the stop plates 4 and 5 and 28and 29'is of the. construction shown in Figures 1 `and 5, that is to say, a fish plate 32 1s placed around the railflanges and underneath the same, and is spiked to` the ties The through openings in the rail flange.

Vpurpose of this arrangement is to permit the vdownwardly'.extending portions 16, 17, 18 and 19 of the shoes andthe members 20 and 21 to freely pass over to the top of the fish plate 32. Y

By connecting the members 2O and 21 to the shoes 6 and 7, asshown, the accidental or unauthorized willful removal of the terminals from the tracks is prevented.

Figure 7 shows a modified form of my invention. The corresponding parts have the same reference numerals as in the other figures, but have the letter a applied thereto.

VThe only. difference between the form of Figure 7 and that shown in the other fig ures is that the members 20 and21l extend downwardly into Contact with the flange of the rail 2al and thus afford a considerable additional contact and friction'surface be* tween the terminal and the rail when the car wheel is on the shoe 7. This arrangement does not substantially increase the fric l tion between theterminal and theirail when the 'car wheel rest-s on the shoe 6. v

Y In opera-tion, one or more of the devices is placed at the points shown in Figure 1. When a vcar to be stopped is run upon the terminal, i't'first rides up the `incline 8 and over the same and onto the shoe 7 and into engagement with the portion between the points'12 and 13. The curvature of this portion' is vsuch that the wheel is stopped from rotating and the momentum 'of the car vcauses the terminal to slide to the right.

The friction betweenthe wear plate of the shoe 7 andthe rail is such that the car is stopped bythe friction'or is slowed down thereby tosueh anextent thatitv will,1 be

gages with the steeper portion 11 of the shoe 6, at which time the shoe 6, together with the shoe 7, is moved along the rail until the flange portions 16 and 17 engage the stop plates 28 and 29, whereupon the shoes will be stopped and the car wheel will ride over the point 9 of the shoe 6 and down the incline 8 onto the rail. v

By making the wear plate 25 of suitable material, usually soft steel, .the friction be.- tween the rail ,and the wear plate is made high when the car wheel is resting on the shoe 7. This provides a high friction during the stopping period of the car. By making the material of the shoe 6 of Vhard steel'or other similar material, the friction between the shoe and the rail will be low, and it will therefore ,require less effort to return the terminal to its original position and to pull the car ofl1 of the terminal than if the friction between the s hoeandthe rail were higher.Y Since the shoe performs no function other than` returning theV device to vits initial position, it `will be apparent that, a low friction is desirable at :that time.

My invention has many' advantages, among which may be mentioned that high friction is secured during the stopping *pe-` riod and that the wear is taken'by areplaceable` part which may be easily substituted for` the worn part a shoe of lour friction material is used to return the terminal to its initial position, thus reducing the friction between the4 shoe andthe rail; means are'used for connecting the two shoes together, so that. the friction of each shoe with. the rail is localized or limited to the contacting area of that particular shoek .with the rail; the devce maybe easily applied to the rails and emoved therefrom, and simple in construction and automatic in op'- eration.

I claim;

1. A track terminal comprising two poriop tions having, different amounts of friction Y low friction with the rail when the car is being pulled on of said terminal, substantially as described.

3. A track terminal adapted to be moved upon a track rail, comprising a portion having relatively high friction with the rail to stop a car and a portion having relatively low fric-tion with the rail when the car is being pulled off of said. terminal, and means limiting the movements of said terminal on the rail, substantially as described.

4. A track terminal adapted to be moved upon a track rail, comprising a portion for carrying a part of the weight of a car during the stopping period of its movement and a portion carrying a part of the weight of a car and acting to return the terminal to its initial position, said portions having different friction with the rail during the movement of the terminal on said rail, substantially as described.

5. A track terminal adapted to be moved upon a track rail, comprising two shoes engaging a rail, means connecting said shoes whereby they may be moved together longitudinally of the rail, said connection permitting independent movement ofsaid shoes 'whereby the friction between one shoe and the rail produced by the weight of a car thereon is not transmitted to the other shoe in a substantial amount, substantially as described.

6. A track terminal comprising a shoe adapted to carry a part of the Weight of a car and to slide on the rail with the car to stop the same, and a second shoe adapted to carry a part of the Weight of a car and to slidevalong the rail to return the device to normal position, said first shoe having a greater friction with the rail than that of the second shoe with the rail, substantially as described.

7. A track terminal comprising a plurality of shoes adapted to be moved along a rail by a car thereon to stop the same, one

of said shoes acting to return the terminaly to normal position when the car is being pulled oif thereof, said shoe having less friction with the rail than that of the first shoe, and means connecting said shoes together, substantially as described.

In testimony whereof I have hereunto set my hand.

SAMUEL ENGLISH. 

